Power Reactors (Division 1): Regulatory Guides 1.221 - 1.240

This page lists the number, title, publication date, and revisions for each regulatory guide in Division 1, "Power Reactors," with references to draft guides and related documents (where applicable).

See also Draft Regulatory Guides for Public Comment.

See NRC Regulatory Guides for more general information.

Regulatory Guides are reviewed about every 10 years, although a guide may be reviewed more frequently if the staff believes an emerging issue affects the guide. The NRC began these reviews in 2010, and began posting the results of its reviews on this site in 2013. The review dates are hyperlinked to the review memorandum, which provide useful information about the status and any known issues with the associated regulatory guide.

Guide
Number
Title Revision
Number
Issue
Date
Additional Information
1.221 Design-Basis Hurricane and Hurricane Missiles for Nuclear Power Plants
 
0 10/2011 Reviewed in 2016 – No issues identified
1.222 Conducting Periodic Testing for Breakaway Oxidation Behavior
 
DG   10 CFR 50.46c
Rulemaking
SECY 16-0033
1.223 Testing for Postquench Ductility
 
DG   10 CFR 50.46c
Rulemaking
SECY 16-0033
1.224 Establishing Analytical for Zirconium Based Alloy Cladding
 
DG   10 CFR 50.46c
Rulemaking
SECY 16-0033
1.226 Flexible Mitigation Strategies for Beyond-Design-Basis Events
 
0 06/2019  
1.227 Wide-Range Spent Fuel Pool Level Instrumentation
 
0 06/2019  
1.228 Integrated Response Capabilities for Beyond-Design Basis Events
 
DG   08/2019 - Final Rule Federal Register Notice
1.229 Alternative Risk-Informed Approach for Addressing the Effects of Debris on Post Accident Long-Term Core Cooling
 
DG   10 CFR 50.46c
Rulemaking
SECY 16-0033
1.230 Regulatory Guidance on the Alternate Pressurized Thermal Shock Rule
 
0 09/2018  
1.231 Acceptance of Commercial-Grade Design and Analysis Computer Programs Used in Safety-Related Applications for Nuclear Power Plants
 
0 12/2016  
1.232 Developing Principal Design Criteria for Non-Light Water Reactors
 
0 04/2018  
1.233 Guidance for a Technology-Inclusive, Risk-Informed, and Performance-Based Methodology to Inform the Licensing Basis and Content of Applications for Licenses, Certifications, and Approvals for Non-Light Water Reactors
 
0 06/2020  
1.234 Evaluating Deviations and Reporting Defects and Noncompliance Under 10 CFR Part 21
 
1 03/2024  
0 04/2018  
1.235 Emergency Planning for Decommissioning Power Reactors
 
DG    
1.236 Pressurized-Water Reactor Control Rod Ejection and Boiling-Water Reactor Control Rod Drop Accidents
 
0 06/2020  
1.237 Guidance for Changes During Construction for New Nuclear Power Plants Being Constructed Under a Combined License Referencing a Certified Design Under 10 CFR Part 52
 
0 02/2021  
1.239 Licensee Actions to Address Nonconservative Technical Specifications
 
0 11/2020  
1.240 Fresh and Spent Fuel Pool Criticality Analysis
 
0 03/2021  

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